JudyB
Queen of the Nuts
After looking around it would appear that this is Fagus Crenata. There is also Fagus Japonica, but I think the leaves of Japonica are a bit rounder than crenata. Although I do have to say that a couple images of the copper spring leaf are close. But it's hard to find images of crenata to compare. Purple beech leaves are much darker, and they also stay dark in the summer, and I thought that copper leaves also stayed a bit ruddy in the summer too.